Base chamber or seat for hydraulic elevators.



No. 634,II9. Patented 0st. 3, |899.

I B. S. MDDRE. BASE CHAMBER 0B SE'T FDR HYDRAULIC ELEVATOBS.

(Application led ct. 5, 1898.)

2 Sheets-Sheet (No'lodel.)

. Q m (Muff W *me Mouans mms co., mm'o-Lrno.. wnsmucfon. E c.

Patented Ust. 3, |899.

R. S. MUORE. BASE CHAMBER ,0B SEAT FOR' HYDRAULIC ELEVTORS`-(Applicativi: Bled Oct 5. 1898.)

2 'Shoots-Shut 2.-

'Ull Model.)

UNITED STATES PATENT OFFICE.

ROBERTS. MOORnfOF OAKLANQOALIFORNIA, AssIeNOR.To YTHE RIsnON IRONANnLOoOMoTIvE WORKS', OF sAN FRANOIsOO, CALIFORNIA;

'BASE CHAMBER OR SEAT lFOR HYDRAULiC ELEVATORS. y

SPECIFICATION forming para of Let-telic Patent No. 634,119, eatenoctober 3, 189e.v A Application nea can@ 5, 139s. sain No. 692,713. v onman.)

To all whom, t may concern: f Y sired to make use of these sideauxiliary suc- Be it known that I, ROBERT S. MOORE, a tion-openings itis required that the saule be citizen of the United States, residing atOalf uncapped or uncovered This not-only takes 55 land, in the county ofAlameda and State of time, but work may be delayed by the caps 5California, have invented certain' new and or covers being lost duringhandling.A

useful Improvements in Base Chambers or, Vhile preserving the-advantagesof the SeatsforHydraulicElevatorsandIdohereby AEvans device covered bythe aforesaid reisdeclare that the following is a full,clear and suedpatent, the object of my invention is to 6o exact description thereo f lprovide a'base chamber or seat whereby the ro The present inventionrelates to certainl vacuum 'may be destroyedior broken at'will new anduseful improvements for use in conf in order to release the load, soas'to provide nection with the base chamber or seat forhyj-' againstclogging; one which will permit of l draulic elevators fully'setforthand described ready access being had to the interior thereof 5 inReissue Letters Patentof the United Statesl without requiring theconnections being dis 15 No. 11,582, .granted unto GeOrge'H. Evansturbed topermit the elbows of the suctionthe 5th day of January, 1897;andthe same openings tobe adjusted to any desired posi consistin thearrangement of parts and detion Without causing delay in the working oftails of construct-ion, as will be hereinafter the elevator, and inproviding means whereby 7o fully shown in the drawings and described theauxiliary side openings may be readily 2o and pointed out in thespecification. opened or closed.

Practical working of hydraulic elevators In order to fully comprehendtheinvention, employing that style of base chamber or seat reference mustbe had to the accompanying known as the Evans base-chamber, lcovsheet ofdrawings, forming a partof this ap- 7 5 ered bythe aforesaid'ReissueLetters Patent, plication. y Y

25 has demonstrated the fact that at times'the Figure 1 is averticalsectionaiview in side suction-pipes have a tendency toi'clog'andelevation, taken through' the center of the that for good workitisessential that provi 'base chamber or seat, showing the water-supsion bemade to destroy the vacuun'in order ply, main suction, andelevator-pipes con- 8o that the-load of the suction-pipes may bje"'re`ne'cted thereto; Fig'. 2 is a partsectional front 3o leased; also,that'it is Oittimes reqniredfthat view in elevation of the basechamber-Or seat access be had to the interior of the base chamand itsconnections. Fig. 3 is a topv plan view, ber orseat in order to replaceworn-out parts the base vchamber or seat being partly broken as, forinstance, the nozzle of the ejectoraway. Fig. 4 isalongitudinal'sectional view. 85 pipewhich in order to prevent delay ofWork in elevation of one of the elbows or joints for 35 should besecured without having to take the side auxiliarysuction-openings. Fig.5 is apart the pipe connections; also, under cera cross-'sectional' viewin elevation, taken on tain conditions quick adjustment as to the linecom, Fig. 4. Fig. 6 isatop plan detailview elbows of the suction-pipesbecomes necesof the air inlet or vent valve, and Fig. 7 is an 9o sary,so as to vary the position of either or enlarged detail sectional viewfully disclosing 4o all of the said suction-pipes, which as the theconnection ofl the air inlet or'vent valve Evans device is at presentconstructed canv VVwith the .wall ofthe main suction-opening. only besecured by stopping the working of In the drawings the letter A is usedto inthe elevator, disconnecting the suction-pipe dicatetheelevator-pipe, and A the base seat 95 elbow from the base-chamber,and changing or chamber, there being interposed'between 45 or shiftingthe sameu'ntil the desired position' the said shaft or chamber and the'elevatorof the suction-pipeis secured, and also that. .pipethethroatAWithin the lower end or inasmuch as at all timesthe lateral or auXil-,A'mouthportion B of thebase chambero'r seat iary suction-pipesl are notrequiredy during is screwed or otherwise secured the nozrzle B' rooworkingy of the elevator it becomes necessary of the ejector-pipe elbowB2, tov the lower end 5o either to cap ory close the auxiliary sidesucof which is attached in any suitable manner, tion-openings or end ofthe suction-pipes conl preferably bolted, the watersupply pipe C. nectedthereto. Consequently when it is de- The upper end'of the elbowB2 isprovided with the circular flange a, and connection is made between thebase chamber or seat and the said elbow by means'of the clamp-ring C',which ring is bolted or otherwise secured to the flange co of the said,seat or chamber,

the flange a of the elbow B2 fitting andrbeing Y Y the interior of thebase chamber or seat transversely toV and above the ejector-nozzle B.Each suction-opening is surrounded bya Vflange l), to which is bolted orotherwiseV Vsecured a clamp-ring Dby means of which the elbows or jointsC C2 Cs are connected to the base chamber orseat. VWithin thecircularscatway b', formed by the clamp-ring,V

[its and works the flange b2 of the said elbows Yor joints. These elbowshave secured thereto and carry, respectively, the main andrside orlateral suction-pipes E E E2 when such pipes Y are made use ot', andbythus connecting the elbows or joints to the base or seat 'the same arefree to turn or be'swung up or down, as desired, in order that theirposition may be varied, This makes each elbow or joint adjustablyconnected Vto the base seat or chamber. Y

The rear wall of the base seat or chamber,

Y or that portion opposite the main suctionopening, is out away, so'asto Vprovide a handopening in order that access may be had to theinterior of the seat or chamber, which hand-opening is closedV by aremovable cover E3, which cover is preferably secured and held in placeby means of bolts d, passing through flange d thereof and ilange cl2,surrounding the hand-opening. By simply removing this cover. theoperator may obtain access to the interior of the base chamber or seatin order to repair or replace any part thereof which may have becomeworn out or dam aged. This is an essential feature, for if a removablecover or back plate be not provided it is necessary in order to replace,say, a worn-ont ejector-nozzle that the base seat or chamber be entirelydisconnected in order to obtain access thereto, thus not only consumingconsiderable time and causing unnecessary trouble, but greatly delayingthe work of the elevator.

The coverE3 is provided on its inner face with a wearing-plate F, wh-ichis removably secured to the cover by means of bolts c. This platereceives the wear which would otherwise fall upon the inner face of thecover E3, due to the spoil passing through the base chamber or seat, andthus protects the said cover from becoming worn away. As thewearing-plate F becomes worn out the same may be easily removed andreplaced by a new one, it only being necessary to release the cover E3for this purpose and remove securing-bolts e. The main wear as to theinterior ofthe basechamber or seat falls upon the rear Y wall thereof.Consequently protecting the saine by the removable wearing-plateconsiderably prolongs the life and usefulness thereof. Y

An air opening or vent e is preferably formed Vin the'top of the mainsuction-opening, which is closed by the gate or valve F', hinged to thesaid elbow Vor joint, so as to cover same when held down'. Y This gateor valve is normally held closed by the suction Vcreated by the materialflowing through the base chamber or seat. Should either of thesuction-pipes (which term includes the elbows or joints for'pipes whichare not at all times connected thereto) have a tendencyto clog with thematerial drawn therein, it is only necessary touraise the hinged gate orvalve, so as to uncover the opening or vent e,.

in order to destroy the vacuum within the base Vchamber or seat.ill/Then the vacuum is thus destroyed or broken, the weight of thematerial within the suction pipe or pipes will cause the same to falldownward, and thus release the suction-pipes. After the pipe or pipeshave been freed the hinged gate or valve is lowered so as to close/theopening or vent e', when the material will be drawn into the basechamber or seat.

The wall surrounding the outlet-opening of Y eachswiveled elbow or jointC2 C3 for the side Yauxiliary suction-openings D( D2 is chamfered, so ast'o provide a valve-seat c2, which receives the valve F2 when movedinward its full distance. YEach valve is provided with the lugs f,Vwhich work within the longitudinal guide' ways f', cut in the innerwall of the said elbows or joints, and each valve is'connected to theinner end of a screw-threaded stem F3, which stern works through ascrew-threaded bushing G, loosely fitted within an opening formed in theend wall G' of each joint or elbow. To the screw-threaded end ofthebushing projecting beyond the end wall G' is rigidly secured thehand-wheel G2. As this wheel is turned to the rightor left it imparts acorresponding motion to the screw threaded bushing, which, working uponthe screwthreaded valve-stem, forces the same outward or inward in orderto seat or unseat the valve F2, so as to open or close the sideauxiliary suction-openings. It will thus be observed that each sideauxiliary suction-opening is under the control of the operator of theelevator and may be quickly closed or opened without delaying the workof the elevator. Suppose the elevator is working from a sump and it isdesired to employ the side suctions. The suctiony pipes or extensions ofthe side auxiliarysuction elbows or joints may be connected to the lowerend ot' the swiveled elbows or joint of the side suction-openings priorto the opening of the valves, or after use the same may be disconnectedtherefrom after the valves have been closed, thus not interfering withthe work of the elevator in any manner whatever, as is the case whereIDO the open end of the side elbows or joints are closed by a cap whichhas to be removed when desired to use the side auxiliarysuction-openings and replaced when said openings are not to be used.

Having thus described my invention, what I claim as new, and desire tosecure protection in by Letters Patent', is'- l. As a new article ofmanufacture a base chamber or seat for hydraulic elevators provided withan outlet-openin g for the spoil, an inlet-opening for the water-ejectorpi pe,two or more independent suction-openings through which the spoilenters the base chamber or seat above the ejector-pipe, and of a valvedair inlet or vent opening by means of which the vacuum maybe destroyedin order to provide against clogging.

2. The combination with a base chamber or seat, for hydraulic elevators,of an air inlet 'cover for said air'inlet or vent opening.

3. The combination with a base chamber or seat for hydraulicelevators,having a side suction opening and' a hand opening formedtherein in line with the suction-opening by means of which access may behad to the interior thereof, a cover for said opening removablyconnected to the base chamber or seat, and-ola Vwearing-plate removablyattached to the inner face of said cover.

e. The combination with a base chamber or seat for hydraulic elevatorsprovided with an outlet-opening for the spoil, an inlet-opening for theWater-ejector pipe, and one or more suction-openings throughwhich thespoil enters, of a hand-opening formed therein opposite asuction-opening by means of `which access may be had to the interiorthereof, a cover for said opening removably attached to the base seat orchamber, and of a valved air inlet or vent opening by means'of which thevacuum in said seat or chamber may be destroyed in order to provideagainst clogging.

5. A base chamber or seat for hydraulic elevators having a mainsuctionfopening, a side auxiliary suction-opening, an elbow for saidauxiliary opening movably connected to the casing, a va ve locatedwithin said elbow and which controls the auxiliary suction-opening, andmeans for opening and closing said valve comprising a screw-stemconnected with the valve extending out horizontally through the elbowand a hand-nut on the stem, substan-` tially as described.

6. In a base chamber or seat for hydraulic elevators, the combination ofa main suctionopening, an auxiliary suction-pipe movably connected tosaid chamber and having therein an elbow, a valve within said elbow forcontrolling said auxiliary suction-pipe and means extending beyond saidelbowfor operating said valve to move the same toward and` -from thesuction-chamber, substantially as detiaily as described.

8. In a base chamber or seat forhydraulic elevators, having a mainsuction-opening, one or more side auxiliary suction-openings, ahand-opening, a removable cover for said opening, a valve controllingthe side auxil-v iary suc tionbpenin g, means for operating said valve,and of a valved air inlet or vent opening in the chamber or seat.

In testimony whereof I ax my signature, in presence of two witnesses,this 16th day of September, 1898.`

ROBERT S. MOORE. Witnesses:

N. A. Acxn'n, LEE D. CRAIG.

